package caiziyou.com.designpattern.principle.liskov;

public class LisKovDemo {

	public static void main(String[] args) {
		A a = new A();
		System.out.println("11-3="+a.func1(11,3));
		System.out.println("1-8="+a.func1(1,8));
		
		B b = new B();
		System.out.println("11-3="+b.func1(11,3));
		System.out.println("1-8="+b.func1(1,8));
		System.out.println("11-3+9="+b.func2(11,3));
	}
}


class A{
	public int func1(int a,int b ) {
		return a-b;
	}
}

class B extends A{
	public int func1(int a,int b ) {
		return a+b;
	} 
	public int func2(int a,int b ) {
		return func1(a,b)+9;
	}
}
